Global Patent Index - EP 2374523 A1

EP 2374523 A1 20111012 - System and method for recovering carbon dioxide from flue gas

Title (en)

System and method for recovering carbon dioxide from flue gas

Title (de)

System und Verfahren zur Rückgewinnung von Kohlenstoffdioxid aus einem Abgas

Title (fr)

Système et procédé pour récupérer du dioxyde de carbone à partir de gaz de fumées

Publication

EP 2374523 A1 20111012 (EN)

Application

EP 11161574 A 20110407

Priority

JP 2010089636 A 20100408

Abstract (en)

[Problem] To provide a system (1100) for recovering carbon dioxide from flue gas (1002), in which a reboiler (100) in a regenerator (1008) can be compactly installed, and a method therefor, in facilities where CO 2 or the like contained in flue gas (1002) is recovered. [Solving Means] To include an absorber (1006) that absorbs CO 2 contained in flue gas (1002), a regenerator (1008) that strips CO 2 from CO 2 absorbent (rich solution) (1007) to regenerate absorbent, internal shells (101) provided at a bottom of the regenerator (1008) with a predetermined interval therebetween, into which regenerated CO 2 absorbent is introduced by a feeding unit (102) from a bottom side thereof so that the CO 2 absorbent overflows from an upper end of the internal shell (101) thereof toward the bottom of the regenerator (1108), and a reboiler (100) that is inserted into the internal shells (101) in a direction orthogonal to a vertical axis and includes a heat-transfer tube (103) that reboils absorbent. Steam separated from CO 2 absorbent reboiled by the heat-transfer tube (103) is transferred to an upper part of a regenerator (1008), condensed absorbent is caused to overflow from an upper end of the internal shell (101) and to be discharged from a bottom side of a regenerator (1008), and the absorbent is fed to the absorber (1006) as regenerated CO 2 absorbent (lean solution) (1009).

IPC 8 full level

B01D 3/32 (2006.01); B01D 53/14 (2006.01); C01B 32/50 (2017.01)

CPC (source: EP US)

B01D 53/1425 (2013.01 - EP US); B01D 2257/504 (2013.01 - EP US); Y02C 20/40 (2020.08 - EP US)

Citation (search report)

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 2374523 A1 20111012; EP 2374523 B1 20121003; AU 2011201508 A1 20111027; AU 2011201508 B2 20130314; CA 2735621 A1 20111008; CA 2735621 C 20130611; JP 2011218287 A 20111104; JP 5351816 B2 20131127; US 2011250120 A1 20111013; US 8647420 B2 20140211

DOCDB simple family (application)

EP 11161574 A 20110407; AU 2011201508 A 20110404; CA 2735621 A 20110404; JP 2010089636 A 20100408; US 201113081925 A 20110407